Do you have a topic that is an immediate deal breaker if a manga series you were already reading suddenly featured that topic, such that you would stop reading the series (even if it was "tastefully" done)? For example: religion, rape, etc.

Guy in an all girl scool

I'm looking for manga that has a male "student" (not teacher) attending an all-girls school. what are some suggestions? *Note: no gender bender, unless it's a girl dressed as a boy ONLY, and ONLY a small number of shoujo/josei manga w/this element; i'm looking for this in more shounen/seinen manga.*